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Dairy Cattle And Reproduction

Subjects : industries, dairy
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Duct through penis that carries sperm and urine






2. Standing to be mounted (last one able to notice); mounting other animals; social behavior-restless - gregarious - activity - vocalizing; frequent urination; mucous discharge






3. Urinary calculi.






4. Failure to have one testis (gonad) to descend






5. 1. sperm is not implanted in egg until hours after breeding. 2. fetal growth has not yet finished.






6. 24 hours before end of estrus cycle






7. Urinary calculi.






8. Microscopic - make sure not sterile - very few bulls are actually tested






9. Not being bred back into herd. horses are seasonal breeders vs. cows as anytime breeders






10. Look for infection - split - and rupture of the penis






11. To remove/separate testicles from animal's body before animal reaches puberty






12. 10-37 (21) days






13. 30 hours after estrus begins






14. Duct through penis that carries sperm and urine






15. (switzerland) 2nd in size and milk production - most muscle -






16. Milk ~305 days - dry 60 days prior to calving






17. Not under a timeline - cow can not be sold as steak






18. 283 days






19. Largest dairy cow - largest udder - highly vascular - eat 40-50% dry matter (eat alot) - most total butterfat






20. 1. brain function - 2. blood flow - 3. willing female






21. What helps regulate spermatogenesis?






22. Earlier you castrate a male - the easier it is on the animal. the longer you wait - death rates increase






23. 1. visual evaluation - 2. scrotal circumference - 3. penis and prepuce observation - 4. rectal palpation - 5. libido test - 6. semen evaluation






24. Important 'landmark' during palpation






25. Standing to be mounted (last one able to notice); mounting other animals; social behavior-restless - gregarious - activity - vocalizing; frequent urination; mucous discharge






26. Knife-loose ~1wk of growth. band-loose ~2wks of growth.






27. Provide nourishment for the developing sperm






28. Serves as a bone cradle for the reproductive system. used greatly in palpation as a 'landmark'.






29. 16-20 hours






30. Help to signal hormone levels which we need both in the brain right next to each other.






31. Implies the amount of estrogen production






32. What about the sperm for a bull which has been castrated but still has testicles?






33. Produce testosterone. located between the seminiferous tubules






34. (switzerland) 2nd in size and milk production - most muscle -






35. FEED






36. What makes the milk flow through the mammary glands?






37. Look for infection - split - and rupture of the penis






38. Small tubes located at the upper ends of the uterine horns. connects uterine horn to infundibulum. passageway of the egg.






39. Boars and stallions-> deliver semen directly into the cervix. bulls and rams-> deliver semen into the vagina.






40. 19-23 (21) days






41. (male) pushes the testes upward toward the body for warmth or protection






42. Larger the cow - more milk is produced; smaller the cow - less milk is produced






43. Not being bred back into herd. horses are seasonal breeders vs. cows as anytime breeders






44. Animals which have many estrous periods during certain periods per year (ex: mare - ewe)






45. 1. to eliminate breeding the females at an early age - 2. makes animals less lean and provides a better cut for the market






46. Head - neck - mid-piece - tail. genetic material - has an enzyme covering that allows it to penetrate the egg






47. Milk ~305 days - dry 60 days prior to calving






48. (male) definition: duct located outside of the testes. 3 parts: head - body - tail. 4 Functions:concentrate sperm - store sperm - transport sperm - site of sperm maturation. entire process takes ~40-60 days






49. 2 month growth cycle. stored in the epididymis of the bull






50. BST given to dairy cattle makes the mammary gland more persistent - helps produce more milk. good as Long-term because it does not cause cow to bulk up - provides more milk/cow Which means less cows needed - less cows need to be given feed - lower co